Class AiConfigurationSettingCommandContribution

Commands + menu for the AI Configuration setting-row gear, mirroring the Settings UI's preference context menu (Reset / Copy Setting ID / Copy as JSON) but backed by AiConfigurationService and acting in the row's own scope. Kept self-contained here rather than reusing the Settings UI's RESET_PREFERENCE command, which is bound to the Preferences editor widget (its scope tracker) and misbehaves when invoked from this view.